Arthur barbarin



A. BARBARIN. LIGHTNING ARRESTBR.

No. 68,407. Patented Sept. 3, 1867.

Figure 3 is a. modification of fig. 2, inns-much as A and A are twostraight permanent magnets, (instead of horse-shoe magnets,) with teeth61) b and b b I) placed parallel to and with their opposite poles facingeach other. These magnets are secured to an insulating-board or frame bytheir binding-screws c c and c c", which also serve the purpose ofconnecting them with the ground by means of wires or metal handsforj",and their teeth 6 6 b and 5'1) 6 are so arranged that they may be placedas near as possible, and between those of the additional plate I),marked 6, without contact, which plate is secured to its positionbetween the magnets by the binding-serews e and e. Instead of toothedmagnets, the same straight permanent magnets may be used, but withoutteeth. In that case there should be two toothed statidnary armatnres D,(each secured to the board y bindieg-screws,) placed as near aspossible, and facing the poles oreuch end of the magnets, withoutcontact, s that the main line should continue its course to itsdestination by means of a metal wire, of any diameter, secured to thebinding-screws of ,thc armaturcs. and passed between and very close tothe magnets without touching them.

Figure 4 is similar to 11g. 1 in all its parts and connections with atelegraph line or a cable, excepting that in this device anelectro-magnet, A, is used instead of a permanent magnetin connectionwith he metal bindingscrews 0 z, to which the poles of an ordinarybattery should be connected when in use, for the purpose of magnetizingthe soft iron rod A, fi 7, passing through the glass cylinder A, fig. 5,around which the helix is wrapped. Z and Z represent the fianche'sof'the glass cylinder or insulator, (sec fig. 5,) which are to preventthe slipping or escape of the convolutions of the magnet wire from theylinder. When an electro magnet instead of a. permanent magnet isapplied or used as an arrestcr, the glass cylinder is used for thebetter protection of the'insulated wire forming the helix of the magnet,as it completely insulates the same from the destructive action oflightning when attracted by the magnetized rod and conveyed to theground through thosupports I) b and 1: l1 and their wires or bands,congccted thereto in the usual manner.

As it is well known that gold, silver, and copper are among the verybest oflightning-conductors,-I

may, if I deem it desirable, electroplate" the metal cores or magnetswith either, for facilitating the convoy ance of atmospheric electricityto the ground, and also for preventing the oxidation of the metals.

The connections of the herein-described devices with a maintelegraplrliii'e or with a. cable, 8.30., when arranged for operationare as follows: In figs. 1 or 4 the end of a main line, beforeconnecting with an oilice magnet or with a cable, is first connected toone of the binding-screws of the pillars D or D, continuing its courseupon the fine metal wire 1' (attached to both pillars through the centreof the magnets) to its destination, while the-supports I) Z) and I) bare in metallic contact with the metal core or'magnet, (see A, fig. 7,)for the purpose of conveying to the ground any atmospheric electricitythat may be attracted by either pole of the magnet before reaching anotfice magnet or a cable. In fig. 2 the main line m is first connectedto the bindingscrew (Z of the stationary armature B, (or of the wireused as a substitute,) and from its other binding-screw d continhes itscourse upon the piece'of fine wircp, forming part of a larger wire, (asshown in the drawings,) to its destination. This piec of fine wire ,1),in connection with a larger one, is used for the purpose of retardingthe passage of the atmospheric electricity upon the armature, so as toenable the attractive power of the magnets to draw it off and convey itto the ground before it can overcome the resistance, caused by thelimited sizeor diameter of thewire, and reach the oifice magnet or thecable. And the opposite poles of the magnets are made to face each otherin order that the atmospheric electricity, (whether negative orpositive, when passing on the armature B or its substitute,) shall berepulsed by two of them and drawn to the ground by the other two throughthe wires andfff' before it reaches an office magnet or a cable. In fig.3.the connections with a main line or a cable and the ground areprecisely the same as those in fig. 2.

Should it bc found necessary to use any of the herein-described dew-icesin connection with any telegraph line outside of an oflice, 1'. e., toconnect either to any part of a line between any two stations, it willonly be necessary in such cases to cut the line in two and toco'nnecteach end of the wire to each binding-screw of the plate orsubstitute placed between the magnets, or to each pillar D and D offigs. 1 and 4 after having secured the arrester in a proper place. I

v I desire it to be fully understood that I do not confine myself to anyparticular size, shape, or power of the magnets, as they may be usedsingle or compound; nor do I confine myself to the particular size ordiam eter of the wires i cry, when used as herein described, but, afterhaving fully described my invention, what I claim, and desireto secureby Letters Patent, is

1. The application and use in connection with aparatonerre orlightning-arrester for telegraph wires, cables,- &c., of one orrnorcpermanent magnets or clectro-magnets, as and for the purposes hereindescribed.

2. A lightning-arrester in which one or more permanent orelectro-mngnets are combined with the telegraph wire or cable and otherparts of said arrester, in the manner shown and described. or in anyother form of mechanical arrangement substantially equivalent to thesame, as set f rth.

ARTHUR BAEBARIN.

Witnesses:

Rurus R. Rnoons, H. N. JENKINS.

